Good evening, i’m trying to run tests of my django application using a docker in docker runner configured as follow:
sudo gitlab-runner register -n \
--url https://gitlab.com/ \
--registration-token fRL4hgdxZyEKw-u2yofb \
--executor docker \
--description "assignment1-pss-dind" \
--docker-image "docker:stable" \
--docker-privileged \
--docker-network-mode bridge
My docker-compose file:
version: '3'
services:
djangoapp:
image: assignment1-pss:latest
build:
context: .
dockerfile: DockerFile
volumes:
- .:/opt/services/assignment1/src
- static_volume:/opt/services/assignment1/static # <-- bind the static volume
- media_volume:/opt/services/assignment1/media # <-- bind the media volume
networks: # <-- here
- nginx_network
- database1_network # <-- connect to the bridge
depends_on: # <-- wait for db to be "ready" before starting the app
- database1
nginx:
image: nginx:latest
ports:
- 8000:80
volumes:
- ./config/nginx/conf.d:/etc/nginx/conf.d
- static_volume:/opt/services/assignment1/static # <-- bind the static volume
- media_volume:/opt/services/assignment1/media # <-- bind the media volume
depends_on:
- djangoapp
networks: # <-- here
- nginx_network
database1: # <-- IMPORTANT: same name as in DATABASES setting, otherwise Django won't find the database!
image: postgres:10
env_file: # <-- we udockerse the previously defined values
- config/db/database1_env
networks: # <-- connect to the bridge
- database1_network
volumes:
- database1_volume:/var/lib/postgresql/data
networks:
nginx_network:
driver: bridge
database1_network: # <-- add the bridge
driver: bridge
volumes:
database1_volume:
static_volume: # <-- declare the static volume
media_volume: # <-- declare the media volume
My gitlab-ci file:
image: tiangolo/docker-with-compose:latest
variables:
DOCKER_HOST: tcp://docker:2375/
DOCKER_DRIVER: overlay2
services:
- docker:dind
before_script:
- docker info
build:
stage: build
script:
- docker-compose build
- docker-compose up -d
- docker-compose exec -T djangoapp sh -c "cd assignment1_pss && python manage.py test polls"
- docker-compose down -v
When i launch locally the command
docker-compose exec -T djangoapp sh -c "cd assignment1_pss && python manage.py test polls"
everything works fine, but inside the runner the networks between each containers doesn’t work so when i launch the test it fails to connect to the database.
It has worked only once as it visible from the first screenshot, but now every time i make a commit i get a db connection failure…
